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/** * @preserve HTML5 Shiv 3.7.3 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed */ ;(function(window, document) { /*jshint evil:true */ /** version */ var version = '3.7.3'; /** Preset options */ var options = window.html5 || {}; /** Used to skip problem elements */ var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i; /** Not all elements can be cloned in IE **/ var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i; /** Detect whether the browser supports default html5 styles */ var supportsHtml5Styles; /** Name of the expando, to work with multiple documents or to re-shiv one document */ var expando = '_html5shiv'; /** The id for the the documents expando */ var expanID = 0; /** Cached data for each document */ var expandoData = {}; /** Detect whether the browser supports unknown elements */ var supportsUnknownElements; (function() { try { var a = document.createElement('a'); a.innerHTML = '<xyz></xyz>'; //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles supportsHtml5Styles = ('hidden' in a); supportsUnknownElements = a.childNodes.length == 1 || (function() { // assign a false positive if unable to shiv (document.createElement)('a'); var frag = document.createDocumentFragment(); return ( typeof frag.cloneNode == 'undefined' || typeof frag.createDocumentFragment == 'undefined' || typeof frag.createElement == 'undefined' ); }()); } catch(e) { // assign a false positive if detection fails => unable to shiv supportsHtml5Styles = true; supportsUnknownElements = true; } }()); /*--------------------------------------------------------------------------*/ /** * Creates a style sheet with the given CSS text and adds it to the document. * @private * @param {Document} ownerDocument The document. * @param {String} cssText The CSS text. * @returns {StyleSheet} The style element. */ function addStyleSheet(ownerDocument, cssText) { var p = ownerDocument.createElement('p'), parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement; p.innerHTML = 'x<style>' + cssText + '</style>'; return parent.insertBefore(p.lastChild, parent.firstChild); } /** * Returns the value of `html5.elements` as an array. * @private * @returns {Array} An array of shived element node names. */ function getElements() { var elements = html5.elements; return typeof elements == 'string' ? elements.split(' ') : elements; } /** * Extends the built-in list of html5 elements * @memberOf html5 * @param {String|Array} newElements whitespace separated list or array of new element names to shiv * @param {Document} ownerDocument The context document. */ function addElements(newElements, ownerDocument) { var elements = html5.elements; if(typeof elements != 'string'){ elements = elements.join(' '); } if(typeof newElements != 'string'){ newElements = newElements.join(' '); } html5.elements = elements +' '+ newElements; shivDocument(ownerDocument); } /** * Returns the data associated to the given document * @private * @param {Document} ownerDocument The document. * @returns {Object} An object of data. */ function getExpandoData(ownerDocument) { var data = expandoData[ownerDocument[expando]]; if (!data) { data = {}; expanID++; ownerDocument[expando] = expanID; expandoData[expanID] = data; } return data; } /** * returns a shived element for the given nodeName and document * @memberOf html5 * @param {String} nodeName name of the element * @param {Document|DocumentFragment} ownerDocument The context document. * @returns {Object} The shived element. */ function createElement(nodeName, ownerDocument, data){ if (!ownerDocument) { ownerDocument = document; } if(supportsUnknownElements){ return ownerDocument.createElement(nodeName); } if (!data) { data = getExpandoData(ownerDocument); } var node; if (data.cache[nodeName]) { node = data.cache[nodeName].cloneNode(); } else if (saveClones.test(nodeName)) { node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode(); } else { node = data.createElem(nodeName); } // Avoid adding some elements to fragments in IE < 9 because // * Attributes like `name` or `type` cannot be set/changed once an element // is inserted into a document/fragment // * Link elements with `src` attributes that are inaccessible, as with // a 403 response, will cause the tab/window to crash // * Script elements appended to fragments will execute when their `src` // or `text` property is set return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node; } /** * returns a shived DocumentFragment for the given document * @memberOf html5 * @param {Document} ownerDocument The context document. * @returns {Object} The shived DocumentFragment. */ function createDocumentFragment(ownerDocument, data){ if (!ownerDocument) { ownerDocument = document; } if(supportsUnknownElements){ return ownerDocument.createDocumentFragment(); } data = data || getExpandoData(ownerDocument); var clone = data.frag.cloneNode(), i = 0, elems = getElements(), l = elems.length; for(;i<l;i++){ clone.createElement(elems[i]); } return clone; } /** * Shivs the `createElement` and `createDocumentFragment` methods of the document. * @private * @param {Document|DocumentFragment} ownerDocument The document. * @param {Object} data of the document. */ function shivMethods(ownerDocument, data) { if (!data.cache) { data.cache = {}; data.createElem = ownerDocument.createElement; data.createFrag = ownerDocument.createDocumentFragment; data.frag = data.createFrag(); } ownerDocument.createElement = function(nodeName) { //abort shiv if (!html5.shivMethods) { return data.createElem(nodeName); } return createElement(nodeName, ownerDocument, data); }; ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' + 'var n=f.cloneNode(),c=n.createElement;' + 'h.shivMethods&&(' + // unroll the `createElement` calls getElements().join().replace(/[\w\-:]+/g, function(nodeName) { data.createElem(nodeName); data.frag.createElement(nodeName); return 'c("' + nodeName + '")'; }) + ');return n}' )(html5, data.frag); } /*--------------------------------------------------------------------------*/ /** * Shivs the given document. * @memberOf html5 * @param {Document} ownerDocument The document to shiv. * @returns {Document} The shived document. */ function shivDocument(ownerDocument) { if (!ownerDocument) { ownerDocument = document; } var data = getExpandoData(ownerDocument); if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) { data.hasCSS = !!addStyleSheet(ownerDocument, // corrects block display not defined in IE6/7/8/9 'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' + // adds styling not present in IE6/7/8/9 'mark{background:#FF0;color:#000}' + // hides non-rendered elements 'template{display:none}' ); } if (!supportsUnknownElements) { shivMethods(ownerDocument, data); } return ownerDocument; } /*--------------------------------------------------------------------------*/ /** * The `html5` object is exposed so that more elements can be shived and * existing shiving can be detected on iframes. * @type Object * @example * * // options can be changed before the script is included * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false }; */ var html5 = { /** * An array or space separated string of node names of the elements to shiv. * @memberOf html5 * @type Array|String */ 'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video', /** * current version of html5shiv */ 'version': version, /** * A flag to indicate that the HTML5 style sheet should be inserted. * @memberOf html5 * @type Boolean */ 'shivCSS': (options.shivCSS !== false), /** * Is equal to true if a browser supports creating unknown/HTML5 elements * @memberOf html5 * @type boolean */ 'supportsUnknownElements': supportsUnknownElements, /** * A flag to indicate that the document's `createElement` and `createDocumentFragment` * methods should be overwritten. * @memberOf html5 * @type Boolean */ 'shivMethods': (options.shivMethods !== false), /** * A string to describe the type of `html5` object ("default" or "default print"). * @memberOf html5 * @type String */ 'type': 'default', // shivs the document according to the specified `html5` object options 'shivDocument': shivDocument, //creates a shived element createElement: createElement, //creates a shived documentFragment createDocumentFragment: createDocumentFragment, //extends list of elements addElements: addElements }; /*--------------------------------------------------------------------------*/ // expose html5 window.html5 = html5; // shiv the document shivDocument(document); if(typeof module == 'object' && module.exports){ module.exports = html5; } }(typeof window !== "undefined" ? window : this, document));
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